F16L 27/11
The sleeve having the form of a bellows with multiple corrugations
Official title: the sleeve having the form of a bellows with multiple corrugations
F16L27/11 (The sleeve having the form of a bellows with multiple corrugations) appears on 278 US grants and 233 published applications in this corpus.
Search patents in F16L- Granted patents
- 278
- Published applications
- 233
- Assignees
- 193
- Inventors
- 566
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 5 |
| 2002 | 9 | 2 |
| 2003 | 6 | 6 |
| 2004 | 3 | 9 |
| 2005 | 9 | 6 |
| 2006 | 4 | 10 |
| 2007 | 2 | 4 |
| 2008 | 5 | 7 |
| 2009 | 6 | 8 |
| 2010 | 3 | 6 |
| 2011 | 7 | 5 |
| 2012 | 2 | 10 |
| 2013 | 5 | 12 |
| 2014 | 5 | 12 |
| 2015 | 11 | 12 |
| 2016 | 5 | 14 |
| 2017 | 10 | 12 |
| 2018 | 12 | 20 |
| 2019 | 12 | 11 |
| 2020 | 13 | 23 |
| 2021 | 11 | 10 |
| 2022 | 17 | 5 |
| 2023 | 6 | 6 |
| 2024 | 4 | 7 |
| 2025 | 7 | 6 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connecting device6 Oct 2026US 12,756,148 B2VAT Holding AG
- Catch basin trap with collapsible outlet pipe connector and method of making a catch basin11 Aug 2026US 12,704,211 B2Decast Ltd.
- Mitigation of vibration in pipe systems28 Jul 2026US 12,692,960 B2The Boeing Company
- Vacuum-insulated double-wall piping for transporting cryogenic fluid9 Jun 2026US 12,650,197 B2Tb Global Technologies Ltd.
- Aircraft assembly2 Jun 2026US 12,643,672 B2Airbus Operations GmbH
- Dissolvable bellows restraint for flexible pipe joint23 Jul 2026US 2026/0210465 A1Oil States Industries, Inc.
- Ball joint for the piping of an engine, and associated piping and aircraft25 Jun 2026US 2026/0177173 A1
- Bellows joint fitting, method for treatment of process exhaust effluent, and processing apparatus25 Jun 2026US 2026/0177181 A1ASM IP Holding B. V.
- Curved pipe segment for transporting a cryogenic fluid, associated arrangement and aircraft11 Jun 2026US 2026/0160372 A1Airbus Operations GmbH
- Geothermal system materials5 Feb 2026US 2026/0036003 A1A.L.E. Systems, Inc.
Most cited
By later US patents
- Flexible connector154US 5,340,165 ASenior Engineering Investments AG · 1994
- Expansion joint for fluid piping with rotation prevention member136US 5,370,427 AGeneral Electric Company · 1994
- Flexible conduit construction and method of making the same131US 4,243,253 ARobertshaw Controls Company · 1981
- Flexible coupler apparatus66US 5,145,215 ASenior Engineering Investments AG · 1992
- Flexible tube with mutually parallel, ring-shaped flutes and axial support64US 4,791,963 AWitzenmann GmbH Metallschlauch-Fabrik Pforzheim · 1988